sticky header menu and sub-menu

Hey, Something happend with the sticky header and the sub-menu: - sticky header - dissapears in the other pages that are not the homepage. - sub-menu and the tiny arrow icon - in the homepage everything is fine, but when you go to the other pages it stay up and opens up and not down. Can you have a guess what could be the reason? Everthing it's up to date. here is my website: https://ledermanancaphotography.co.il/ Thank you Anca